package Demo1;


abstract class A {
    public int a;
    public int b;
    /*public A() {

    }*/
    public A(int a,int b) {
        this.a = a;
        this.b = b;
    }
    public void func() {

    }
}
class B extends A {
    public B() {
        super(1,2);
    }
}
public class Test2 {
}

